The students work their way through the inquiry process using pipets, tubes, and valves to model blood movement through a two chambered heart.
If you have the funds to try it in your classroom, it's well worth the investment. I re-used a lot of the pieces in year two, and that helped cut down on the cost.
Have students save their materials at the end and sort into separate bins for tubing, pipets, and connectors. Almost all items in the kit are reusable. The only thing I will need more of next year is the flexible tubing in longer lengths. Students would also need more parafilm, but that's easily available outside the kit.
The hardest part for my students was not having explicit instructions to build the prototypes. They are students who usually do really well following lab guidelines and the freedom to try things on their own was difficult. By the third prototype they realized I wasn't going to tell them if they were right or wrong and got more comfortable trying things on their own. There are multiple setups that meet the requirement in the instructions, so they can be creative!It's so difficult to find something related to physiology that includes inquiry, and I would highly recommend this activity!
I would also recommend this for students who need a good homeschool activity about the Circulatory System, as it's very simple and instructions for the teacher are very clear with good sketches of the models.
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